sonic barrier
常見例句
- Breaking the sound barrier generates a sonic boom, so supersonic travel is heavily restricted over land.
打破音障時會產(chǎn)生音爆，所以超音速飛行在陸地上空有諸多限制。 - U. S. Navy photographer with lightning-fast reflexes captured this image of a fighter plane blasting through a "sonic boom cloud" as the jet broke the sound barrier.
一位美國海軍攝影師敏捷地捕捉到了戰(zhàn)斗機在突破音障時，產(chǎn)生“音爆云”的圖片。
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